The opening weekend is in December.
Leinster will begin their Champions Cup campaign against Bath in December.
Their Pool A opener has been fixed for Saturday, December 11th at the Aviva Stadium.
Ulster are away to Clermont that evening.
The following day, Munster are in Coventry for a meeting with Wasps.
Also on the Sunday, Connacht open their campaign away to Stade Francais.

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